Linda Wigington distinguished between deep retrofits & deep energy reductions, thus expanding the range of strategies & tactics from which we might propose when engaging with people, the ones who choose.

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  • 1000 Home Challenge site with case studies and resources
  • For more information about the Intro to the Thousand Home Challenge webinars 
  • Register here
  • Upcoming Intro to the 1000 Home Challenge Webinars
    • Thursday, Dec 10, 2020 1 PM Eastern time
    • Also, will schedule one-on-one, contact Linda Wigington


In the Same Spirit/Tangential


Presentations from the February 2019 ZNE Retreat are available now ( Stay tuned for the video recordings. Hosted by Redwood Energy, this event has a great line-up of talent and content for anyone pursuing deep reductions of energy use.  Check out presentations from previous retreats.

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  • Announcing! The new 1000 Home Challenge is now live.  Check it out -


    Home - 1000 Home Challenge
    Transforming America with deep energy reductions, reducing energy consumption by 70%. Find out how to join and access resources to help you plan your…
  • Recordngs of Redwood Energy's ( Annual Zero Carbon Retreat are available for viewing.

    If you are interested in electrification or NZE there is a wealth of content here!


  • The Colonial Solar House in Urbana Illinois is the 32 project to officially meet the 1000 Home Challenge!

    Scott Willenbrock, the owner, was challenged to bring his home’s carbon footprint in line with his concern for climate change.  Four strategies were deployed to convert his 1929 2,500 square foot home into a zero net energy house.

    1. The energy source is solar: photovoltaic modules are used to produce electricity directly from sunlight in a 6 kW array
    2. Geothermal heating and cooling replaced the home’s gas furnace
    3. The need for heating and cooling is reduced by weatherization.
    4. The demand for electricity is reduced by using high-efficiency appliances.

    There is enough surplus electricity to power an electric car for local driving.

    Learn more about the Colonial Solar House by visiting this website ( or reading this article published in Building Performance Journal (

    Zero net Energy House | ILLINOIS PHYSICS
  • Lots of Great Sessions & Content! 

    September 23-24,2020 10 - 4:30 PM PST  Online

    Redwood Energy's 9th Annual Zero Carbon Retreat

    Register free of charge via Zoom:

    Recordings will be posted following the retreat.



    Welcome! You are invited to join a webinar: Redwood Energy's Zero Carbon Retreat September 23-24, 2…
    Zero Carbon Deep Dives by Leading Experts
  • 1 day left - Get Counted! 5th Inventory - Net Zero & Net Zero Ready Homes

    There is still time to enter or update your home/project in the 5th Annual Zero Energy Home inventory. The deadline is August 15.
    According to the inventory director and author, Ann Edminster, M. Arch., “This year we are expanding our survey questions to identify critical factors like solar adoption and trends in electrification.” Edminster also notes that the new, enhanced online inventory input form allows users to add a listing in just a few minutes. Updating projects inventoried in earlier years is also much faster and easier now.
    There are many categories - Team Zero’s goal is be as inclusive as possible. Projects can be in the planning stage, in progress, or completed. They can be net zero, net positive, or net energy ready, or high performance. 
    There is a 1000 Home Challenge category, including a) NZE verified for our NZE projects, b) THC completed (these count as Net Zero Ready) as well as pending projects in either category.  
    Your entry can help to increase the recognition and viability of deep reductions in existing homes. 
    Here is the link 
  • Our next two Intro to the 1000 Home Challenge webinars are this Friday, Friday, June 5, 2020 1 PM EDT and Friday, July 10, 2020 1 PM EDT.

    Do you know a person or organization committed to demonstrating deep (70%+) reductions of energy use in existing homes? Please forward this information to them.
    For more information about the Intro to the Thousand Home Challenge webinars & to register
  • Call for Speaker abstracts due March 22!

    The Getting to Zero National Forum is dedicated to defining a new zero energy, zero carbon future for the built environment. Oakland, CA - October 9-11, 2019

    This forum offers a solutions-focused program that is carefully curated to maximize opportunities for connecting and knowledge building. Plan to share your expertise about zero energy and zero carbon policy, programs, and building projects through our Call for Speakers.

    Submissions are due March 22 and priority topic areas include (but are not limited to):

    Design, Build, Operate, Renovate

    Policies for Getting to Zero Energy & Carbon

    Grid-Integrated Buildings

    Building Decarbonization & Electrification

    Development & Finance 

    Learn more about what is required for submittal at

    Questions? Contact Webly Bowles at 

    2019 Program
    Development of the 2019 Getting to Zero National Forum program is underway!  We are in the process of finalizing our group of program advisors and pr…
  • New 1000 Home Challenge project classification -- 
    "Registered"  means that you have an interest in participating in the 1000 Home Challenge. Folks who have participated in the Introduction to the 1000 Home Challenge webinar can submit the Threshold Calculator. To be registered, you need to complete the 1st 3 worksheets. Once you are registered, we send you instructions for completing the 1000 Home Challenge application and also joining the AjO Thousand Home Group,

  • 1000 Home Challenge recently featured on Home Energy Pros, Legends of Home Performance series

  • Two more projects have been officially become the 29th and 30th home to meet the 1000 Home Challenge, and two more are in the final review stage. Stay tuned!

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28th Home to Meet 1000 Home Challenge - Congrats to Balance Point Home Performance!

The 28th home has officially met the Thousand Home Challenge! The POS Dream House, nestled in the Sierra Nevada foothills, is the first house in Nevada County and the eleventh home in California to meet the Challenge.Gavin Healy and Elizabeth Dieter bought their 1880’s Victorian home in 2006.Since then they embarked on major remodeling/retrofit effort that included making structural repairs, insulating the home’s foundation, walls, and roof and totally revamping the mechanical, plumbing and…

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Congrats Bill Turner - 27th Project (1st in Maine) to Officially Meet the 1000 Home Challenge!

Check out 1) Attached energy use bar chart - 80% reduction of 2011-12 use.2)  Updated case studies: things inspired Bill Turner’s journey on the path to deep reductions in his home in Harrison, Maine.1)      He  got tired of using six cords of wood, (plus propane), to heat his home  2)      He discovered the 1000 Home Challenge.Since 2012 he has addressed air leakage and insulation with “strategic dense pack” through Curry Caputo and his company…

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Weigh in - Honorable Mention? 2nd Base? Half-Way There? 50% Better? On the Path?

The Thousand Home Challenge is moving the category of recognition forward that represents "Half-way there".There is consensus that this category not be the same as meeting the 1000 Home Challenge. We are not lowering the standard (approximately 70% above average) for meeting the Challenge. There is much to learn from households that use half the energy as average Americans,  In many cases, contrary to conventional energy efficiency wisdom, they often have cost-effective opportunities to further…

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Congrats Ceniceros Household! 26th Project to Officially Meet 1000 Home Challenge

52%, 55%, and 78% reductions - check out the numbers in the attached two slides!10 years ago, significant efforts to reduce energy use (kWh and kW) began with a comprehensive energy upgrade. This included addressing insulation defects, additional air and duct sealing, replacing the heating system and AC system, and the addition of efficient appliances.Bruce and Andrea Ceniceros, and their children, Annika and Kira have all been part of the team effort to manage their energy use in their…

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19 Replies